[Worldtraveler once upon a time]

— The article states, “If it's been more than six months since your last booster, your vaccination status will expire.”

Therefore, in simple language, the injection is a biannual injection. The “two doses” of the mRNA inoculations is merely the opening gambit in the marketing. Twice a year given that this concoction's effect “wanes.”

Waiting for the next marketing ploy to drop.

[Don W]

Biennial? In the UK, they have stepped it up to every THREE months.